5 Ton Mg Type Main Double Girder Gantry Crane With Span 30 Meters – Height 12 Meters

The Structure Sketch

Supply scope

Lifting capacity: 5t~500t, span: 18m~35m, lifting height: 1m~40m, medium working duty (A5);

Non-standard products could also be designed and manufactured as your demands.

Working atmosphere and condition

This crane is used in ambient temperature of -25℃～+40℃，humidity≤85%，elevation under 1000m，power supply is 3-ph, 380V,50HZ(can change as user demand).

Main Structure and Feature

Gantry Mounting

1. "A" type structure, using tack bolts and connecting bolts to settle main parts;
2. Provided max. room between legs to ensure the objects could be lifted between legs at the cantilever end;
3. All partial rail box beam structure main girder, the camber meet national standard (0.9~1.4)/1000S, flange and bolts connect main girders and legs;
4. Box structure legs, both sides connect separately with main girders and lower separators.
5. Q235B or Q345B materials (similar as Fe37 or Fe52)

Trolley

Consists of trolley frame, lifting mechanism and trolley traveling mechanism, etc.

• Trolley Frame
  1. Welded of steel plate with high intensity and strong rigidity.
  2. Equipped with lifting mechanism and trolley traveling mechanism.
• Lifting Mechanism
  1. One set of independent driving device for single hook and two separate driving device for double hook (main and auxiliary).
  2. Lifting mechanism working principle, through high speed rotating of YZR type crane special motor, and gear coupling drive involute gear reducer. Then the low speed shaft of reducer turn the wire rope drum. As long as the control of motors and its positive and negative rotation, can achieve the lifting function of the hook.
  3. In order to ensure the security and reliable of lifting mechanism, the brake is installed on the high speed shaft of reducer. And the load limiter is installed on the bearing pedestal which supports the drum to avoid overload.
• Trolley Traveling Mechanism
  1. Trolley traveling mechanism working principle, the involute vertical gear reducer driven by motor. The low speed shaft of reducer connects to active wheel of trolley frame in the way of centralized driving. The motor adopt double-output gear and there is a brake on one end of it.
  2. There are four wheels installed under the trolley. Two of them are active wheels and the others are driven wheels. Driving devices include 1. Motor; 2. Brake; 3. Reducer; 4. Compensating shaft; 5. Coupling; 6. Wheels, etc. are shown in the mechanical drawing as follows:

• Crane Traveling Mechanism
  1. Separately drive
  2. Vertical trinity drive, compact and safe;
  3. Interference fit key link the wheels and axles, angle bearingbox for wheel group;
  4. Two sets outage terminal limiter and backstop device withbuffer, for accurate positioning of crane;
  5. Equipped rail clamp and anchorage for wind and storm proof.

Control Mode

1. Cabin control, fully enclosed, steel plate bending production with enough strength and stiffness,broad vision;
2. Linkage control design could ensure driver to operate safely and comfortably. Safe and convenient passageway, comfortable seat. The cabin is equipped with fire extinguisher, display screen of overload limiter.